source water pollution

• 水源污染

source water pollution的用法和样例：

例句

1. Air and water pollution are still serious problems in many developing countries.
   在很多发展中国家，空气和水源污染仍是很严重的问题。
2. Pollution of the water supply reached a level pernicious to the health of the population.
   水源污染已经达到危及居民健康的程度。